The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 20, 2004

Filed:

Dec. 16, 2002
Applicant:
Inventors:

Chen-Chung S. Chang, Attleboro, MA (US);

Bijendra Jha, North Attleboro, MA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21B 1/22 ; B21B 3/00 ; B21D 3/300 ; B23P 1/704 ; B32B 3/100 ;
U.S. Cl.
CPC ...
B21B 1/22 ; B21B 3/00 ; B21D 3/300 ; B23P 1/704 ; B32B 3/100 ;
Abstract

A method for producing titanium alloy brazing strips and the resulting brazing strips and/or foils. The method uses a cold-rolling process without annealing to generate a titanium based multi-layer alloy strip or foil made up of discrete layers of titanium and an additional layer or layers of one or more metals, such as nickel and/or copper, for example, or alloys thereof, with the layer of titanium roll bonded without annealing to the layers of the additional metal(s). The resulting strip or foil can include, for example, Cu/Ti/Cu, Ni/Ti/Ni, and Ni/Ti/Cu, and also, for example, Cu/Ni/Ti/Ni/Cu, and Ni/Cu/Ti/Cu/Ni, among other combinations. The resulting strip or foil can be used for brazing, creating an alloy of the weight percentage of the original materials.


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